move openMediaGalleryManager fn out of experimental.

chrome/common/extensions/api/experimental_media_galleries.idl

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // File-level comment to appease parser. Eventually this will not be necessary.
 
 namespace experimental.mediaGalleries {
 
-  [inline_doc] enum GetMediaFileSystemsInteractivity {
-    // Do not act interactively.
-    no,
-    // Ask the user to manage permitted media galleries.
-    yes,
-    // Ask the user to manage permitted galleries only if the return set would
-    // otherwise be empty.
-    if_needed
-  };
-
-  [inline_doc] dictionary MediaFileSystemsDetails {
-    // Whether to prompt the user for additional media galleries before
-    // returning the permitted set. Default is silent.
-    GetMediaFileSystemsInteractivity? interactive;
-  };
-
-  callback MediaFileSystemsCallback =
-      void ([instanceOf=LocalFileSystem] optional object[] mediaFileSystems);
   callback AssembleMediaFileCallback =
       void ([instanceOf=Blob] optional object mediaFile);
 
   interface Functions {
-    // Get the media galleries configured in this user agent. If none are
-    // configured or available, the callback will receive an empty array.
-    static void getMediaFileSystems(optional MediaFileSystemsDetails details,
-                                    MediaFileSystemsCallback callback);
-
     // Create a new MediaFile setting the metadata in the Blob to the supplied
     // values, overriding any existing metadata in the media file. If user agent
     // does not recognize the Blob as a supported file format, it will fail.
     // |mediaFileContents| : the media bytes.
     // |metadata| : the metadata. TODO(estade): this should be
     // [instanceOf=Metafile].
     static void assembleMediaFile(
         [instanceOf=Blob] object mediaFileContents,
         object metadata,
         AssembleMediaFileCallback callback);
 
     // Get any thumbnails contained in the passed media file. The resulting
     // directory reader refers to a virtual directory that can not be navigated
     // to. If there are no thumbnails in the passed file entry, the virtual
     // directory will have no entries.
     // TODO(estade): The return type should be Directory. The argument type
     // should be [instanceOf=FileEntry].
     [nocompile] static object extractEmbeddedThumbnails(object mediaFile);
   };
 
 };